editor_file-8.x-1.5/editor_file.ckeditor5.yml

editor_file_file:
  ckeditor5:
    plugins:
      - drupalFile.DrupalFile
      - drupalFile.DrupalInsertFile
  drupal:
    label: File
    class: \Drupal\editor_file\Plugin\CKEditor5Plugin\File
    library: editor_file/drupal.ckeditor5.drupalfile
    admin_library: editor_file/drupal.ckeditor5.drupalfile.admin
    elements:
      - <a href data-entity-uuid data-entity-type>
    toolbar_items:
      drupalInsertFile:
        label: File